Pouring device



May 18 1926. 7

1220672602": wazaag H. P. WILLIAMS POURING DEVICE Filed Feb. 19, 1924 I an effective seal or Patented May 18, 19250 PATENT crawumrsa starts iinn ran rEneELLYwILmAMe, or ST. LOUIS, rissovnr.

governs nnvrcn.

Application filed February abrasion whereby'the seat may retain its original shape longer, aiding in the selfaligning and the self centering of the stopper when being rnoved to closing position, reducing the. tendency to leakage and the wastage of the molten materialwith its attendant hazard or danger to the worlginen, and aiding in effecting a tortuous flow of theinolten material; 'to provide such nozzle with a surface so shaped that a small area of contact or even a mere line of contact betwe'en it and the stopper will suflice to tor n closing of thenoz zle against discharge and leakage of the molten inat'erialr'to solocate the nozzle in the loottoin of the ladle so thatits seating or upper end will be in raised position abovethebottom er the/ladle, the latter being preferably formed with a recess or well about the n'oz zle, with the advantage of preventing the contents of the ladle from coming directly into'contactavith the seat and tacilitating the seating and holding closed of the stopper upon the nozzle ;'to so form the seatthat it'will aid in self-centering the stopper when being moved to closing position; to provide a'sto'pper whiclrwill make contact With the outside of thenozzle instead of interiorly; to provide the stopper with an interior, or internal seating and sealing portion, preferabl in the 'form of a replaceable insert of suitable substance, such as graphite, which may become slightly plastic at the temperature of the molten material with the advantage of such substance conforming itself to the slight irregularities of thesup face of thenozzle seat to forni an eilective seal and closing of the nozzle against discharge or leakage of the molten material when the stopper is in closing position; to provide the stopper seating portion with preferably a tapering or inclined surface to aid in effecting a self-centering and align ng of the stopper whenbeingrnov'ed to closing position and also to cooperate in eficting the small area or line contact with the 19, 1924. Serial n). 693,779.

nozzle seat; to provide the stopper with protecting means, 'sdch'as :1 depending portion surrounding tl eiip-per eiid ottlie 11oz zle so as to prevent contact with the seating portions of both the nozzle and the stopper from external ob-jects the depending pottion dipping-into the well in aidof this object to provide fora tortuous"passageofthe molten naterial to the nozzle bythe dep'eIrd in g portion of thestopperextending below the upper or inlet end of the nozzle, the eittent of the dip of said portion' into the well aidingthisobject; topr(widesuch other objects, advantages andcapabilitie's as-will here na t p-Pe n as ar ifi e ifl'y possessed by the invention. l In tl e drawing" showing an illustrative embodiment otthe iiivention,'-Fig. 1 is a view,"in' vertical sectiomof a ladle. equipped with a device'cons tructed in accordance with the invention, and Fig; 2 an ealarged'sec tiorlal view or the device and 'a'fragment of the ladle bottoinj Befferringn ore in detail to the drawing, the invention"is"shown' comprised irraladle exterior nie t'al' sheathing 1 an interior lining of refractory Inaterial The ladle provided with a hotton har ing a suitable aperture tlierein" fo1"the r'eceptlon of a nozzle ineinher '3 provided with a discharge passage or'orifi-ce 4t forni'edrivith a taperedinlet portion S'asblearly shown in if of the drawing. llheiipp er end of the nozzle 3 is formed with a tapered s'ur fac'efi providing an 'e xt'ei n'al or exterior seat This surface 6 may be curved so that its'coiitacjt with a shopper member 7' may be orsman areaor even a mere lijne'con tac tf The bottom of the ladle be provided with a depression or" recess 8 surrounding theiipper end of the nozzle 3 so as to forrn 'a' sort of vvell about the upper or seating end of the nozzle, a s'clearly shown in FigI 2of the drawing. The nozzle iiia'y be formed of refractory material suitable for the use to which it maybe put. i i i Above the n" zzle and vertically movable toward and froin the same'is a stopper coniprising a' sleeve ineiiiber 9 having an annula-r depending portion lO'capableiof surou i g the P1 a of t n' z when" the stopper is in lowered or closed Po it nhe lever ei d' 'ftli in m f is internally recessed to replaceably receive a pi sealing men'bler .7 which iiji ay be of an suitable refractory material, er Inaface 6 so that there will be a small area of contact or a mere line of contact between the two surfaces (3 and 11. It is also preferred that the material 7 be such that it may be come slightly plastic at the temperature of the molten material in the ladle so that when the stopper member is lowered into seating position the member 7 may conform itself to whatever irregularities may be present in the surface 6 of the nozzle. In this way leakage and wastage of the molten material will be prevented and hence the danger and hazard to the workmen entirely avoided.

It will be noted that the molten material must take a tortuous path about the lower end of the surrounding portion 11 and then upwardly between the surfaces 6 and 7 before it may pass downwardly into the orifice 4. In this way thetendency of cont-act of the molten material is substantially along the surfaces 6 and 11 instead of directly thereupon or at right angles thereto. This aids in self-cleaning of the material that may tend to adhere to the surfaces 6 and 11 and when the stopper is in lowered position there is no direct contact by the molten material with the seating surfaces. The surrounding member 10 also aids in protecting the seat 6 from contact from external ol jects, the well 8 permitting a certain amount of dip or extension of the member 10 therein both for the protection above mentioned and also for effecting the tortuous passage of the material during the discharge action.

The member 9 is preferably made of refractory material and centrally apertured to receive an operating rod 12 having, at its lower end, a head 13 fitting into a suitable recess in the member 7 or, if desired, entirely imbedded therein. The rod 12 extends upwardly to the upper part of the ladle and is connected, to suitable means, (not shown) for raising and lowering the stopper when it is desired to control the dis charge of the molten material from the ladle. Inasmuch as the mechanism for raising and. lowering the stopper is not involved in the invention herein disclosed, it is not necessary to describe such mechanism. The rod 12 is preferably surroumled, throughout the length thereof, with refractory material such as sleeves 1% as clearly shown in the draw- 111g.

The particular construction herein disclosed has the advantage of not permitting the freezing of the molten material to the seats of the nozzle and stopper, the relation of the path of flow of the material and the surface of the seat being such that the surfaces of the seat will be self-cleaning.

lihile I have herein described and. upon the drawing shown a preferred en'ibodiment of the invention, it is to be understood that the invention is not limited to the particular details, arrangement of parts, and construction shown and described, but that it also comprehends other details, arrangements of parts, and constructions, without departing from the spirit thereof.

Having thus described my invention, I claim:

1. A nozzle for pouring ladles, comprising an exteriorly tapered stopper-engaging seat and a discharge passage.

2. A nozzle for pouring ladies, comprising an exteriorly tapered stopper-engaging seat having a small area of contact with a stopper, and a discharge passage.

3. In a pouring ladle, a nozzle in the bottom of said ladle and having an exteriorly tapered stopper-engaging seat at a distance above said bottom.

t. In a pouring ladle comprising a bottom lniving a recess therein, a nozzle in said bottom and having a stopper-engaging seat located above the bottom of said recess.

5. In a pouring ladle comprising a bottom, a nozzle extending through said bottom and having a tapered exterior stopper-engaging seat at the upper end thereof, and a stopper having an interior seat for engaging said nozzle seat.

6. In a pouring ladle comprising a bottom, a nozzle in said bottom for discharging contents of the ladle therethrough, a stopper movably cooperative with said nozzle to control flow of the contents through the nozzle, said nozzle and stopper having respectively exterior and interior engaging seat portions.

7. In a pouring ladle comprising a bottom, a discharge nozzle in said bottom and having a valve seat portion, a stopper member having a valve seat portion cooperating with the seat portion of the nozzle to shut off flow of molten material from the nozzl when the stopper is in closed position. said stopper having means for causing a tortuous passage of the material to the nozzle when the stopper is in operative position.

8. In a pouring ladle comprising a bottom, a discharge nozzle in said bottom and having a valve seat at its upper end, a stopper having a valve seat at its lower end and movable to close and open the passage of molten material from and to said nozzle, said stopper having a depending portion surrounding said seats for causing the ma terial to take a tortuous path when the stopper is in open position.

9.111 a pouring ladle comprising a bottom, a discharge nozzle in said bottom and having a stopper-seating portion, a stopper therefor, said stopper having a sealing member for said seating portion and composed of a substance which is slightly plastic at the temperature of the molten metal in the ladle whereby the sealing member may conform itself to the irregularities of the surface of the seating portion to form a seal against leakage of the material when the stopper is in closed position.

10. A stopper for pouring ladle nozzles, comprising an interiorly tapered seat portion, and means for protecting said seat portion from contact from exterior objects.

11. A stopper for pouring ladle nozzles, comprising an interior seat portion having an interiorly tapered surface for seating upon the nozzle and for self-centering the stopper to the nozzle when being moved into closing position.

12. A stopper for pouring ladle nozzles, comprising a depending portion capable of surrounding the end of the nozzle, a seating member in the depending portion and hav ing a seating surface for engagement with the nozzle when the stopper is in closing position, said depending portion protecting the seating member from contact with exterior objects.

13. A stopper for pouring ladle nozzles, comprising an outer member of refractory material, and an interiorly tapered inner seat-engaging member of soft material.

14. A stopper for pouring ladle nozzles comprising an outer member of refractory material, and an inner seat-engaging mem ber of graphite.

15. A stopper for pouring ladle nozzles comprising a body member having a recess for holding a seat-engaging member, and an interiorly tapered seat-engaging member replaceably held in said recess.

16. A stopper for pouring ladle nozzles, comprising an outer member of relatively hard material and having a recess, an inner member of relatively soft material replaceably held in said recess and having an interiorly tapered seatengaging portion.

In witness whereof, I hereunto subscribe my name to this specification.

HERMAN PENGELLY WILLIAMS. 

